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ABSORBER DEMETHANIZER FOR METHANOL TO OLEFINS PROCESS.
ABSORBER DEMETHANIZER FOR METHANOL TO OLEFINS PROCESS.
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机译:吸收剂脱甲醇,用于甲醇制烯烃工艺。
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摘要
A process for conversion of methanol to olefins (MTO), including: contacting methanol and air in a methanol-to-olefins reactor; recovering an effluent from the methanol- to-olefins reactor comprising methanol, ethylene, and nitrogen oxides; separating the effluent via one or more reactive distillation and/or distillation stages using a hydrocarbon absorbent to recover a first fraction comprising ethylene and a second fraction comprising methane; wherein the separating comprises operating the one or more extractive distillation and/or distillation stages at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N2O3.
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机译:一种将甲醇转化为烯烃的方法(MTO),包括:在甲醇转化为烯烃的反应器中使甲醇和空气接触;从甲醇制烯烃反应器中回收包含甲醇,乙烯和氮氧化物的流出物;使用烃吸收剂经由一个或多个反应蒸馏和/或蒸馏阶段分离流出物,以回收包含乙烯的第一馏分和包含甲烷的第二馏分;其中所述分离包括在足以防止氮氧化物基本上转化为N 2 O 3的温度和压力下操作一个或多个萃取蒸馏和/或蒸馏阶段。
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